Alas, there are many things that indicate you are getting old. No denials. To Wit:

-You think young people play their sound systems way too loud, and too late.
-Pretty young girls call you "sir". (as do cops in their 20s or 30s.)
-The blue jerseys in Best Buy leave you the heck alone. (I consider this a good thing!)
-You no longer buy playboy, or the sports illustrated swimsuit issue, because you just cannot bring yourself to yak up the money.
-You get on your kids about how much electricity they are using.
-You are in awe at today's college age kids, who have their own credit cards, cars, cell phones, and expensive clothes. You remember your own college days, when you were rich if you had ten bucks in your pocket.

On the loud car stereos: Is it just me, or are they all listening to the same song?